<template>
  <div id="app">
    <router-view/>
   
  </div>
</template>
<script>


export default ({
  setup() {
    
  },
  created() {
      //刷新是读取刷新前的vuex
      if (sessionStorage.getItem("store") ) {
        this.$store.replaceState(Object.assign({}, this.$store.state,JSON.parse(sessionStorage.getItem("store"))))
      }
      //保存vuex
      window.addEventListener("beforeunload",()=>{
        sessionStorage.setItem("store",JSON.stringify(this.$store.state))
      })
  },

})
</script>

